Which statements regarding microprocessors and microcontrollers are CORRECT $($More than one statement applies$)?$

a$.$ Microprocessors used in loT $($Internet of Things$)$ are $$sually reserved for computing$-$intensive applications because they run at higher clock rates and can address a lot of memory, but at the expense of greater costs, size, and power consumption.

b$.$ Microprocessors are specifically designed to work with sensors and I$/$O devices and are the processing device of choice for edge computing in lo applications.

c$.$ A microcontroller is a small, low$-$power processor with built$-$in analog and digital I$/$O lines and memory that usually runs at speeds measured in the tens of Megahertz.

d$.$ Microcontrollers can be used in edge computing applications but are more commonly part of the back$-$end computing system that receives and analyses data from edge devices.